Inbar Tkatchev piked
Piked-Stalder Tkatchev piked
Sophie Scheder (GER)
Kelly Simm (GBR)
One of the brand new babies of the Tkatchev family, the piked-Stalder Tkatchev in piked position is not officially named in the code of points because it was first performed at the 2015 World Championship by both Sophie Scheder and Kelly Simm.
It wasn’t until 2017 that the rule was changed to allow multiple gymnasts to get a skill named after themselves by performing it at the same competition, so Scheder and Simm were just two years too early. But in protest, we have all decided to combine their names and refer to this skill as the Schimm.
For clarification, refer to: Shaposhatchev Dictionary